Texas Instruments LM1117DT-3.3/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.61 | $1.61 |
| 15+ | $1.55 | $23.25 |
| 25+ | $1.52 | $38.00 |
| 50+ | $1.44 | $72.00 |
| 100+ | $1.27 | $127.00 |
| N+ | $0.25 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | LM1117-3.3 |
| Packaging | Tube | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 15V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1.2V @ 800mA |
| Current - Output | 800mA |
| Current - Quiescent (Iq) | 5 mA |
| Current - Supply (Max) | 10 mA |
| PSRR | 75dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | 0°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-252-3, DPAK (2 Leads + Tab), SC-63 |
| Supplier Device Package | TO-252-3 |
| ROHS |
The LM1117DT-3.3/NOPB is a low dropout linear regulator from Texas Instruments, delivering a fixed 3.3V output with up to 800mA current. Its low dropout voltage of 1.2V and high PSRR of 75dB ensure stable, clean power for sensitive electronics. Housed in a TO-252-3 package, it offers thermal protection and current limiting for reliable operation.
- High output current: 800mA supports a wide range of loads, from logic ICs to small motors.
- Low dropout voltage: 1.2V at full load allows operation with minimal headroom, improving efficiency.
- Excellent PSRR: 75dB at 120Hz filters mains ripple, ideal for audio and precision analog circuits.
- Robust thermal protection: Internal current limiting and thermal shutdown safeguard the device and load.
3.3V Logic Power Supply
Provides a stable 3.3V rail for microcontrollers, FPGAs, and digital logic ICs, with 800mA capacity for moderate loads.
Post-Regulation for Switching Converters
Clean up noisy DC-DC converter output using the 75dB PSRR at 120Hz, reducing ripple to sensitive analog circuits.
Battery-Powered Devices
With 5mA quiescent current, it suits battery-operated equipment where efficiency is secondary to simplicity and low noise.
Industrial Sensor Interfaces
Provides a low-noise 3.3V reference for analog sensors and ADCs, ensuring accurate measurements.
Networking Equipment
Powers Ethernet PHYs and controllers requiring a stable 3.3V supply with transient response for data bursts.
Consumer Audio Equipment
Low output noise and high PSRR make it ideal for audio codecs and DACs needing clean 3.3V rails.
- Q: What is the output voltage of the LM1117DT-3.3/NOPB?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 800mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 4.5V to 15V (not explicitly provided, typical for LM1117; verify datasheet).
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.2V at 800mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 5mA.
- Q: What package is available?
- A: It comes in a TO-252-3 (DPAK) package.
- Q: What is the output voltage of the LM1117DT-3.3/NOPB?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 800mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 4.5V to 15V (not explicitly provided, typical for LM1117; verify datasheet).
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.2V at 800mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 5mA.
- Q: What package is available?
- A: It comes in a TO-252-3 (DPAK) package.

LM1117DT-3.3/NOPB.pdf